Kalanchoe plant named ‘KJ 2003 0871’

ABSTRACT

A distinct cultivar of  Kalanchoe  plant named ‘KJ 2003 0871’, characterized by its upright and freely branching plant habit; dark green-colored leaves; large orange-colored flowers with more than 20 petals per flower; and excellent postproduction longevity.

Botanical designation: Kalanchoe blossfeldiana×Kalanchoe laciniata.

Cultivar denomination: ‘KJ 2003 0871’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Kalanchoe plant, botanically known as Kalanchoe blossfeldiana×Kalanchoe laciniata, and hereinafter referred to by the name ‘KJ 2003 0871’.

The new Kalanchoe is a product of a planned breeding program conducted by the Inventor in Hinnerup, Denmark. The objective of the breeding program was to create new freely-flowering Kalanchoe cultivars with large flowers, numerous petals per flower, attractive flower coloration and excellent postproduction longevity.

The new Kalanchoe originated from a cross-pollination made in Hinnerup, Denmark, of the Kalanchoe blossfeldiana cultivar African Flame, not patented, as the female, or seed, parent with the Kalanchoe laciniata cultivar KJ 2001 1858, not patented, as the male, or pollen, parent. The new Kalanchoe was discovered and selected by the Inventor as a single flowering plant within the progeny of the stated cross-pollination grown in a controlled environment in Hinnerup, Denmark.

Asexual reproduction of the new Kalanchoe by terminal cuttings at Hinnerup, Denmark, by the Inventor, has shown that the unique features of this new Kalanchoe are stable and reproduced true to type in successive generations.

BRIEF SUMMARY OF THE INVENTION

The cultivar KJ 2003 0871 has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature, daylength and light intensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘KJ 2003 0871’. These characteristics in combination distinguish ‘KJ 2003 0871’ as a new and distinct cultivar:

-   -   1. Upright and freely branching plant habit.     -   2. Dark green-colored leaves.     -   3. Large orange-colored double flowers with more than 20 petals         per flower.     -   4. Excellent postproduction longevity.

Plants of the new Kalanchoe differ primarily from plants of the parent cultivars in petal number and petal coloration.

Plants of the new Kalanchoe can be compared to plants of the Kalanchoe cultivar KJ 2003 0855, disclosed in U.S. Plant Pat. No. 17,529. Plants of the new Kalanchoe differ primarily from plants of the cultivar KJ 2003 0855 in petal coloration as plants of the cultivar KJ 2003 0855 have golden yellow-colored flowers.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearance of the new Kalanchoe, showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Kalanchoe. The photographs were taken under diffuse natural light conditions on a sunny day at approximately noon in Hinnerup, Denmark.

The photograph at the top of the sheet comprises a side perspective view of a typical flowering potted plant of ‘KJ 2003 0871’.

The photograph at the bottom of the sheet comprises a top perspective view of a typical flowering plant of ‘KJ 2003 0871’.

DETAILED BOTANICAL DESCRIPTION

In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2001 Edition, except where general terms of ordinary dictionary significance are used. Plants used in the photographs and for the following observations and measurements were grown in Hinnerup, Denmark, under commercial practice in a glass-covered greenhouse for about eleven weeks after the start of short day/long night photoperiodic treatment with average temperatures of 20° C. Plants used in the description and photographs were not pinched. Unless otherwise specified, the leaf description represents leaves from a vegetative plant.

-   Botanical classification: Kalanchoe blossfeldiana×Kalanchoe     laciniata cultivar KJ 2003 0871. -   Parentage:     -   -   Female, or seed, parent.—Kalanchoe blossfeldiana cultivar             African Flame, not patented.         -   Male, or pollen, parent.—Kalanchoe laciniata cultivar KJ             2001 1858, not patented. -   Propagation:     -   -   Type cutting.—Terminal cuttings.         -   Time to produce a rooted young plant.—About two weeks.         -   Root description.—Numerous, fine, fibrous, and             well-branched. -   Plant description:     -   -   Form.—Upright plant habit with numerous compound cymes;             freely flowering. Actual plant shape will depend on whether             or not plants are pinched (apical terminals removed).         -   Branching habit.—Freely branching. Pinching (removal of             terminal apex) is not required but will enhance lateral             branch development.         -   Plant height at flowering.—About 35 cm.         -   Plant diameter at flowering.—About 27 cm.         -   Foliage description.—Arrangement: Opposite, simple. Size:             Leaf size is reduced after floral induction. Vegetative             plants: Length: About 16 cm. Width: About 14 cm.             Reproductive plants: Length: About 6 cm. Width: About 4 cm.             Shape: Hastate. Apex: Rounded. Base: Obtuse. Margin:             Crenate. Aspect: Concave. Texture, upper and lower surfaces:             Smooth, glabrous; leathery; succulent. Color: Developing             foliage, upper surface: 137A. Developing foliage, lower             surface: 137B. Fully expanded foliage, upper surface: 147A.             Fully expanded foliage, lower surface: 147B. -   Flower description:     -   -   Flower type and habit.—Double flowers arranged in compound             dichasial cymes that arise from leaf axils. Upright             flowering stems. Freely flowering. Flowers persistent.         -   Natural flowering season.—Winter to early spring; flower             initiation and development can be induced under short             day/long night conditions.         -   Time to flower.—In the summer with 20° C. growing             temperatures, about eleven weeks of short day/long night             conditions are required to produce flowering plants. During             the winter with supplemental lighting and 20° C. growing             temperatures, about 13 weeks of short day/long night             conditions are required to produce flowering plants. Time to             flower is primarily dependent upon temperature and light             intensity.         -   Flower opening.—First flower open is the terminal flower at             the main axis and is followed by the opening of the terminal             flowers of the side branches of the inflorescence. About one             week after the first flower has opened, 10% of the remaining             flowers are open.         -   Post-production longevity.—Plants of the new Kalanchoe             maintain good leaf and flower substance for about five weeks             under interior environmental conditions.         -   Flower diameter.—About 2.6 cm.         -   Quantity.—Freely flowering, potentially about 175 to 320             flowers per plant.         -   Flower buds.—Shape: Oblong. Length: About 1.2 cm. Width:             About 8 mm. Color: 20A.         -   Petals.—Quantity: Typically more than 20. Length: About             9 mm. Diameter: About 9 mm. Shape: Round elliptic. Apex:             Cuspidate. Margin: Entire. Texture, upper and lower             surfaces: Glabrous, smooth and satiny. Color: When opening             and fully opened, upper surface: Close to 30A. When opening             and fully opened, lower surface: Close to 20A.         -   Reproductive organs.—Stamens: Stamen number: About 10 to 15.             Anther shape: Slightly oblong. Filament color: Green. Pollen             color: Yellow. Pistils: Pistil number: About four. Style             color: Green. Stigma shape: Round. Ovaries: Superior and             four-celled. Ovary size: About 1 mm by 4 mm. Ovary color:             Light green.         -   Seed/fruit.—Seed and fruit production has not been observed. -   Disease/pest resistance: Resistance to known pathogens and pests     common to Kalanchoe has not been observed on plants of the new     Kalanchoe grown under commercial greenhouse conditions. 

1. A new and distinct cultivar of Kalanchoe plant named ‘KJ 2003 0871’, as illustrated and described. 